SGE log files

Grid Engine messages can be found in syslog during startup:

After startup the daemons log their messages in their spool directories.

Qmaster:

$SGE_ROOT/default/spool/qmaster/messages

Exec daemon:

$SGE_ROOT/default/spool/$HOSTNAME/messages

or in syslog, if configured

There more logs

• joblog If this parameter is set to true, the reporting file will contain job logging information. See reporting(5) for more information about job logging.
• sharelog. The Sun Grid Engine qmaster can dump information about sharetree configuration and use to the reporting file. The parameter sharelog sets an interval in which sharetree information will be dumped. It is set in the format HH:MM:SS. A value of 00:00:00 configures qmaster not to dump sharetree information. Intervals of several minutes up to hours are sensible values for this parameter. See reporting for further information about sharelog.

• log_consumables This parameter controls writing of consumable resources to the reporting file. When set to (log_consumables=true) information about all consumable resources (their current usage and their capacity) will be written to the reporting file, whenever a consumable resource changes either in definition, or in capacity, or when the usage of a consumable resource changes. When log_consumables is set to false (default), only those variables will be written to the reporting file, that are configured in the report_variables in the exec host configuration, see host_conf (5) for further information about report_variables.

http://arc.liv.ac.uk/SGE/howto/rotatelogs.html
[PDF] 
Grid Engine 6 - BioTeam
www.bioteam.net/wp-content/uploads/2009/09/07-SGE-6-Admin... 
Execd spool logs often hold job specific error ... Will create a 1-time scheduler trace file $SGE_ROOT/default/common ... Increase log verbosity A SGE configuration ...

SGE CERES Scripting - Earth's energy budget
ceres.larc.nasa.gov/documents/presentations/SGE_Scripting_DMT.pdf 
Additional Log File for SGE Session   Contains everything printed to STDOUT and STDERR during SGE session   Also includes a header line with job ID and log file name.
[PDF] 
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ceres.larc.nasa.gov/documents/presentations/SGE_Scripting_SSIT.pdf 
Introduction   Need to run PGE's on SGE independent of platform submitted to   Develop scripts to setup for either environment on the fly   Currently in ...

NEWS CONTENTS

• 210210 : Rotating and truncating Grid Engine Log Files ( Rotating and truncating Grid Engine Log Files, )

Old News ;-)

Rotating and truncating Grid Engine Log Files

Contents

1. Overview

2. Variables

3. Command line parameters

4. Examples

Sun Grid Engine daemons create log files called "messages" in their respective spool directories. Also, an 'accounting' file and a 'statistics' file is created. A script for truncating log files is found in the following directory:

$SGE_ROOT/util/logchecker.sh

The script is not activated by any of the Sun Grid Engine daemons automatically. It is intended to be edited according to the needs of your site. After customizing the script, you can add an entry to your crontab. The script is can run in verbose mode or completely silently. It can also run in a mode where it only prints what would be done. The script accepts only two command line parameters for overriding the ACTION_ON parameter and the location of the exec daemon spool directory (see below).

Sun Grid Engine Software daemons create log files in the qmaster_spool_dir and execd_spool_dir which are defined in the global cluster configuration, the can be overridden in the local cluster configuration of every execution host (usually this is not done). The directory is usually called 'default', and only if the $SGE_CELL variable is used, 'default' is overridden.

Default location of Sun Grid Engine log files:

<qmaster_spool_dir>/messages
<qmaster_spool_dir>/schedd/messages
<execd_spool_dir>/<hostname>/messages
<sge_root>/<sge_cell>/common/accounting
<sge_root>/<sge_cell>/common/statistics
  

Since these directories can all be located in the same directory hierarchy in a shared NFS filesystem, or the execd spool directories can point to a local directory, it is possible to specify with the ACTION_ON parameter (see below) which 'messages' files should be rotated when the script is called.

Variables

The following variables need to be configured in the script. The "|" character specifies an alternative. All variables in the script must be entered in Bourne shell syntax. So there may be no white space before or after the equal "=" sign.

• UNCONFIGURED=yes|no

  After the script is configured you should set this value to "no". If set to "yes" (or any other value), the script only will print out what would be done.

  Default: UNCONFIGURED=yes

• ECHO=:|echo

  The colon ":" is the null command in the shell. If you set the variable to this value, the script will work silently (only error messages are printed). If you set the value to "echo" the script will print what it is currently doing.

  Default: ECHO=echo

• SGE_ROOT=

  Enter the path of your sge_ROOT directory here.

  Default: SGE_ROOT=undefined

• SGE_CELL=default|

  Enter the name of your cell, if not 'default'

  Default: SGE_CELL=default

• ACTION_ON=1|2|3|4

  1 = work on qmaster and scheduler "messages" files only
  2 = work on "messages" file on current host only
  3 = work on all accessible execd "messages" files of global config
  4 = work on qmaster "messages" and all accessible execd "messages" files

  Default: ACTION_ON=4

• ACTIONSIZE=

  rotate/delete only if file size exceeds ACTIONSIZE in kilobytes. If ACTIONSIZE is set to 0, rotate "messages" file each time script is called.

  Default: ACTIONSIZE=0

• KEEPOLD=

  Defines the number of old messages files to be preserved. E.g. "30" means that "messages.0" to "messages.29" are saved. A value of "0" means no backup is done. The most recent messages file has the extension ".0".

  Default: KEEPOLD=30

• GZIP=yes|no

  yes = compress rotated "messages.0" file with gzip
  no = leave rotated "messages.0" file uncompressed

  Default: GZIP=yes

• ACCT=yes|no

  yes = rotate accounting file when rotating qmaster 'messages' file
  no = don't rotate accounting file

  Default: ACCT=no

• STAT=delete|yes|no

  delete = delete statistics file
  yes = rotate statistics file
  no = don't rotate statistics file

  The 'statistics' file in this release is not used. You can safely delete it. you can also set the the parameter stat_log_time in your global cluster configuration to a very long interval (default is 48:00:00 - 48 hours)

  Default: STAT=delete

---

Command line parameters

The script accepts the following command line parameters:

• -execd_spool

  Define the base directory of the execd spool directory. Do not add the unqualified hostname in the command line. The hostname is added automatically by the script.

• -action_on 1|2|3|4

  Override the ACTION_ON variable in the script.

---

Examples

1. All Sun Grid Engine spool directories are shared. You can call the script on any one of your Sun Grid Engine hosts or on your file server.

   
   set ACTION_ON to "4" in the script. Set other values according to your needs and add the script to your crontab of one of the above machines.

2. Sun Grid Engine execd spool are defined only through the global cluster configuration, but point to a local directory.

   
   set ACTION_ON="3". Add the start of the script to all crontabs of your execds in your cluster. On your qmaster machine (or on your file server) add the following call of the script to your crontab:

      <path_to_script>/logchecker.sh -action_on 1

3. Sun Grid Engine spool directories of execds are defined in the local configuration.

   Set ACTION_ON="2" in the script:

   On your qmaster machine (or on your file server) add the following call of the script to your crontab:

      <path_to_script>/logchecker.sh -action_on 1

   On your exec hosts add the following line:

      <path_to_script>/logchecker.sh -execd_spool 

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